// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef NET_URL_REQUEST_URL_FETCHER_DELEGATE_H_
#define NET_URL_REQUEST_URL_FETCHER_DELEGATE_H_

#include <stdint.h>

#include <memory>
#include <string>

#include "net/base/net_export.h"

namespace net {

class URLFetcher;

// A delegate interface for users of URLFetcher.
class NET_EXPORT URLFetcherDelegate {
public:
    // This will be called when the URL has been fetched, successfully or not.
    // Use accessor methods on |source| to get the results.
    virtual void OnURLFetchComplete(const URLFetcher* source) = 0;

    // This will be called when some part of the response is read. |current|
    // denotes the number of bytes received up to the call, and |total| is the
    // expected total size of the response (or -1 if not determined).
    virtual void OnURLFetchDownloadProgress(const URLFetcher* source,
        int64_t current,
        int64_t total);

    // This will be called when uploading of POST or PUT requests proceeded.
    // |current| denotes the number of bytes sent so far, and |total| is the
    // total size of uploading data (or -1 if chunked upload is enabled).
    virtual void OnURLFetchUploadProgress(const URLFetcher* source,
        int64_t current,
        int64_t total);

protected:
    virtual ~URLFetcherDelegate();
};

} // namespace net

#endif // NET_URL_REQUEST_URL_FETCHER_DELEGATE_H_
